Structural engineering firm in Montreal
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About GC4I
GC4I Inc. is a structural engineering firm based in Montreal. We assess, calculate and design the elements that hold buildings up: foundations, walls, beams, columns, floors and frames.
We founded GC4I after years in the field, with a simple conviction: a client should understand what the engineer observes, what they recommend and why. It's the engineering firm we would have wanted to hire ourselves, technically rigorous and clear in its explanations.
- 435+ projectsCompleted for property owners, condominiums and building professionals
- 10+ yearsOf structural engineering experience
- Engineers licensed by the OIQReports and plans signed and sealed by the engineer in charge
01
What we do
Eight areas of work, one approach: observe, analyze, then deliver a signed and sealed report or plans.
Structure, Foundations and Additions
Permit plans, load-bearing wall openings, added storeys, foundations and piles.
Building Assessment and Inspection
Cracks, sagging, pre-purchase inspections, post-loss assessments.
Construction Supervision
Supervision plan, visits at key stages, certificate of compliance.
Bill 16 and Bill 122
Contingency fund, maintenance log, facades and multi-level parking structures.
Confined Space Structures
Inspection of manholes, tanks, valve chambers and other confined spaces.
02
Our way of working
Every assignment follows the same thread, from the first call to construction follow-up when you need it.
- Listen: understand the question, the building and the deadline you're facing.
- Observe on site: surveys, measurements and photos, before any conclusion.
- Analyze: trace the load path, check by calculation, establish the probable causes.
- Explain: findings and recommendations written clearly, and presented in person when needed.
- Sign and seal: reports and plans for which the engineer takes professional responsibility.
- Follow up: answer the contractor and visit the site at key stages, if the assignment includes it.
Before we start
- Written service proposal
- Scope, deliverables and timeline set before the work begins
- Engineer in charge
- One contact who knows your file
- Documents
- Reports and plans delivered in digital format
03
What guides our practice
Rigour
Every conclusion rests on observations, measurements or calculations. Anything that couldn't be verified is stated as such.
Clarity
We explain our findings in plain terms, so you can make an informed decision.
Transparency
Scope, deliverables and timeline are agreed in writing before the work begins.
Collaboration
We work with the architect, contractor, property manager, insurer or lawyer involved in your file.
Up-to-date knowledge
Our engineers keep up with changes to codes and standards, as part of the continuing education required by the OIQ.
Accountability
Reports and plans signed and sealed by the engineer who takes professional responsibility for them.
04
Where we work
Our office is at 8350 Christophe-Colomb Avenue, Suite 18, in Montreal. We work in Montreal, on the South Shore, on the North Shore and across Quebec, on residential, condominium, commercial, institutional and industrial buildings.
For structural emergencies, our line is open 24 hours a day, 7 days a week, at (438) 993-8518.
05
FAQ
Are GC4I's engineers members of the Ordre des ingénieurs du Québec?
Yes. Our reports and plans are signed and sealed by an engineer who is a member of the Ordre des ingénieurs du Québec and who takes professional responsibility for them.
What area do you serve?
In Montreal, on the South Shore, on the North Shore and across Quebec. Tell us about your project and we'll confirm our availability.
How does an assignment start?
With a first conversation, by phone or in writing, with your photos and documents. We then send you a written service proposal that sets out the scope, deliverables and timeline.
Do you work with the professionals already involved in my project?
Yes. We coordinate our work with the architect, contractor, property manager, insurer or lawyer, depending on your file.
Next step
Let's talk about your building
Describe your situation and attach a few photos: an engineer will reply and send you a written service proposal.
- Firm
- GC4I Inc., structural engineers
- Office
- 8350 Christophe-Colomb Avenue, Suite 18, Montreal
- Service area
- Montreal, South Shore, North Shore and across Quebec
- contact@gc4i.ca